J/A+A/436/527ivo://CDS.VizieR/J/A+A/436/527doi:10.26093/cds/vizier.34360527CDSCarraro G.Baume G.Piotto G.Mendez R.A.Schrnidtobreik L.2012-11-16T15:30:49Z2005-06-29T16:31:45ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fropen-star-clustersinfrared-photometryvisible-astronomybroad-band-photometryccd-photometrykron-cousins-photometryWe present wide-field deep UBVIc photometry for the previously unstudied open cluster NGC 4852 down to a limiting magnitude Ic~24, obtained from observations taken with the Wide Field Imager camera on-board the MPG/ESO 2.2m telescope at La Silla (ESO, Chile), in the photometric night of July 7, 2002. These data are used to obtain the first estimate of the cluster basic parameters, to study the cluster spatial extension by means of star counts, and to derive the Luminosity (LF) and Mass Functions (MF). The cluster radius turns out to be 5.0+/-1.0arcmin. The cluster emerges clearly from the field down to V=20mag. At fainter magnitudes, it is completely confused with the general Galactic disk field. The stars inside this region define a young open cluster (200 million years old) 1.1kpc far from the Sun (m-M=11.60, E(B-V)=0.45). The Present Day Mass Functions (PDMF) from the V photometry is one of the most extended in mass obtained to date, and can be represented as a power-law with a slope alpha=2.3+/-0.3 and (the Salpeter MF in this notation has a slope alpha=2.35), in the mass range 3.2<=m/m_{sun}_<=0.6. Below this mass, the MF cannot be considered as representative of the cluster MF, as the cluster merges with the field and therefore the MF is the result of the combined effect of strong irregularities in the stellar background and interaction of the cluster with the dense Galactic field. The cluster total mass at the limiting magnitude results to be 2570+/-210M_{sun}_.2005A&A...436..527Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/436/527CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/404/927 : UBVRI photometry of NGC 2422 (Prisinzano+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/436/527https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/436/527http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/436/527https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/436/527https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/436/527http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/436/527GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/436/527/table5 (Photometry of NGC 4852)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/436/527/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/436/527/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/436/527/table5?GETtext/xml+votable180.050000true194.69505-59.516330.0055555555555555566/43030-43031 43036-430373.322582951404819e-19 3.852589004194616e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/436/527?format=asciiOpticalInfrareddefaultJ/A+A/436/527/table5Photometry of NGC 4852recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential numbermeta.recordintRAJ2000Right ascension (J2000) (1)degpos.eq.ra;meta.mainindexedDEJ2000Declination (J2000) (1)degpos.eq.dec;meta.mainindexedXposCCD position along X axispixpos.cartesian.x;instr.detdoubleYposCCD position along Y axispixpos.cartesian.y;instr.detdoubleVmagJohnson V band magnitudemagphot.mag;em.opt.Vfloate_VmagError in V band magnitudemagstat.error;phot.mag;em.opt.VfloatB-V? Johnson (B-V) color indexmagphot.color;em.opt.B;em.opt.Vfloatnullablee_B-V? Error in B-V colormagstat.error;phot.color;em.opt.BfloatnullableU-B? Johnson (U-B) color indexmagphot.color;em.opt.U;em.opt.Bfloatnullablee_U-B? Error in U-B colormagstat.error;phot.color;em.opt.UfloatnullableV-IcJohnson-Cousins (V-I) color indexmagphot.color;em.opt.V;em.opt.Ifloate_V-IcError in V-Ic colormagstat.error;phot.color;em.opt.Vfloat